IPR DetailsAT&T's patent claim pertaining to draft-mogul-http-delta

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representatives of the original submitters. Updates will automatically
be forwarded to the current Patent Holder's Contact and to the Submitter
of the original IPR disclosure.

B. Does this disclosure relate to an unpublished pending patent application?:

Has patent pending

No

V. Licensing Declaration

The Patent Holder states that its position with respect
to licensing any patent claims contained in the patent(s) or patent
application(s) disclosed above that would necessarily be infringed by
implementation of the technology required by the relevant IETF specification
("Necessary Patent Claims"), for the purpose of implementing such
specification, is as follows(select one licensing declaration option only):

Licensing

See Text Below for Licensing Declaration

Licensing information, comments, notes, or URL for further information

This is to advise the IETF that AT&T believes it owns at least one patentthat may relate to Internet Draft document "draft-mogul-http-delta-07.txt",including United States Patent No. 5,931,904. To the extent that thetechnology discussed in that Internet Draft becomes an IETF Standard and tothe extent claims of AT&T's patents are required to implement the IETFStandard, AT&T agrees that, upon written request, AT&T will offer, on anondiscriminatory basis, non-exclusive, royalty-free licenses under suchpatent claims to implement that IETF Standard. AT&T's willingness to grantsuch licenses is conditioned upon the prospective licensee granting areciprocal license to AT&T under any patents that the prospective licenseehas to any technology required to implement that IETF Standard.

Note: The individual submitting this template represents and warrants
that he or she is authorized by the Patent Holder to agree to the
above-selected licensing declaration.

VI. Contact Information of Submitter of this Form

Submitter name

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